Heat-interchange device



JuIy 17, 19 28. 1,677,777

c. R. HOUSEMAN HEAT INTERCHANGE DEVICE Fil ed Jan. 25, 1926 2Sheets-Sheet 1 July 17, 1928.

cfR. HOUSEMAN HEAT INTERCHANGE DEVICE Filed Jan. 25, 1926 2 Sheets-Sheet2 Patented July 17, 1928;

UNITED STATES PATENT OFFICE.

CECIL ROBERT HOUSEMAN, OF WEMBLEY, ENGLAND, ASSIGI Q'OR, BY MESNEASSIGN- MENTS, TO ATR- REDU'CTION COMPANY, J INCORPORATED,

YORK.

Application filed January 23,1926, Serial No.

This invention consists in improvements in means, or apparatus, suchas.those de-.

foam, caused by the gas rising through the liquid in bubbles, or smallportions of.gas enveloped mostly by thin'film's of the liquid. Suitableelements may be constructed as hereinafter described with reference 'tothe accompanying drawing in which:

Figure 1 illustrates, in section, an apparatus consisting of a number ofelements each constructed in accordance with this invention and arrangedto form a column. Figure 2 is a plan of part of Figure 1. Figures 3- and4 show, in perspective, alternative forms of thin corrugated copperribbons hereinafter referred to and Figure 5 shows in plan, drawn to anexaggerated scale. a fragment of the element, hereinafter referred to,comprising alternating corrugated and plain ribbons. 7

Each of the elements A shown in' Figure 1 consists in, or comprises,thin copper ribbons a and b of suitable small width. one (a) of which isplain and the other (b) is corrugated transversely at a right angle asshown in Figure 3, or diagonally as shown in Figure 4. The depth of thecorrugations would be determined by the physical properties of theparticular liquid to be operated upon, and is generally less thanone-tenth of one millimetre. The said ribbons are alternativelyarranged, as indicated-in Figure 5,and are then wound spirally into therequired form to constitute an element having the requisite compactnessand a great number of short and minute passages upethrough which the gaswill pass, or can to pass, in such manner that 1i uid, maintained atsuflicient height upon t e element, will be converted into froth, orfoam, in the space above where intimate contact between the gas andliquid will be obtained, the gas caused,

A CORIOB-ATION OF NEW HEAT-TNTERCHANGE DEVICE.

83,232, and in Great' Britain January as, 1925. v I

ribbon b as shown in Figures 2 and 5. c in-- dicates radial bars fixedon each side-of the element A for maintaining the ribbons in positionbetween rings (Z and e. p

The passing of the li uid from the element A, or from each 0 the saidelements if, as will usually be the case, a number of superposedelements be employed one above the other, as shown'in Figure 1, iseffected independently of the small spaces, or perforations, for the gasby providing each element with an overflow conduit B and seal preferablyarranged as indicated in Figure 1. The liquid, resulting from thecondensation of the foam, or froth, and which has passed over theoverflow B which determines the depth of foam, or froth, uponany particular element, flows into a well g having a lower portion dipping intoanother well h constituting a seal up which the liquid rises and fromwhich it passes to the next element (or into the receptacle for thetreated liquid if the operation be completed by a suitable number of.distributing pipes This arrangement of wells allows liquid-to passdownwards, but prevents gas passing upwards along the same path when theelement A is functioning normally and is capable of giving greatcompactness ina tier of elements.

It is to be understood that the invention is not limited to the preciseconstruction of element hereinbefore described and illustrated in theaccompanying drawing, as modifications may be made without departingfrom the scopeof the invention.

What I claim 1s: I

An apparatus for use where intimate contact between a gas and a liquidis desired,

said receptacle to support a. body of liquid space between the plainribbons, whereby and to permit the passage of gas therethe plain ribbonsare maintained in spaced through, said means comprising a series ofrelation and a suflicient surface is provided 10 alternately plain andcorrugated ,ribbons, the to maintain a liquid between said strips.corrugations in said last mentioned ribbons In testimony whereof I havesigned my being angularly disposed, said corrugated name to thisspecification.

ribbons filling a substantial portion of the CECIL ROBERT HOUSEMAN.

